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System for controlling power flow in a power bus generally powered from reformer-based fuel cells

  • US 6,326,763 B1
  • Filed: 12/20/1999
  • Issued: 12/04/2001
  • Est. Priority Date: 12/20/1999
  • Status: Expired due to Fees
First Claim
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1. A control system for controlling power flow in a power bus generally powered by a reformer-based fuel cell system (FCS), the control system comprising:

  • an energy storage device (ESD);

    a power interface unit coupled to selectively pass power bi-directionally between the energy storage device and the power bus in response to an ESD power command signal supplied to the power interface unit; and

    a controller coupled to the power bus to receive one or more signals indicative of the instantaneous power delivered by the fuel cell system and configured to generate the ESD power command signal so that the energy storage device may supply power to the power bus at least during transient conditions when the instantaneous power delivered by the fuel cell system is below a FCS power command signal.

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